ITTO20130654A1 - CABLE REEL FOR INSTALLATIONS IN AN EXPLOSIVE ENVIRONMENT - Google Patents
CABLE REEL FOR INSTALLATIONS IN AN EXPLOSIVE ENVIRONMENTInfo
- Publication number
- ITTO20130654A1 ITTO20130654A1 IT000654A ITTO20130654A ITTO20130654A1 IT TO20130654 A1 ITTO20130654 A1 IT TO20130654A1 IT 000654 A IT000654 A IT 000654A IT TO20130654 A ITTO20130654 A IT TO20130654A IT TO20130654 A1 ITTO20130654 A1 IT TO20130654A1
- Authority
- IT
- Italy
- Prior art keywords
- cable reel
- cable
- shaft
- grounding
- housing
- Prior art date
Links
- 239000002360 explosive Substances 0.000 title description 2
- 238000004804 winding Methods 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 230000001360 synchronised effect Effects 0.000 claims 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229910000906 Bronze Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
- B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
- B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
- B65H75/44—Constructional details
- B65H75/48—Automatic re-storing devices
- B65H75/486—Arrangements or adaptations of the spring motor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G11/00—Arrangements of electric cables or lines between relatively-movable parts
- H02G11/02—Arrangements of electric cables or lines between relatively-movable parts using take-up reel or drum
Landscapes
- Toys (AREA)
Description
“Avvolgicavo per installazioni in ambiente antideflagrante†⠀ œCable reel for installations in an explosion-proof environmentâ €
DESCRIZIONE DESCRIPTION
La presente invenzione riguarda un avvolgicavo per installazioni in ambiente antideflagrante. The present invention relates to a cable reel for installations in an explosion-proof environment.
In particolare la presente invenzione riguarda un dispositivo la cui funzione à ̈ bloccare sul nascere le esplosioni, per il funzionamento sicuro degli apparecchi e dei sistemi di protezione degli impianti destinati ad essere utilizzati in atmosfera potenzialmente esplosiva. In particular, the present invention relates to a device whose function is to stop explosions in the bud, for the safe operation of equipment and protection systems of plants intended for use in potentially explosive atmospheres.
Lo stato dell’arte à ̈ rappresentato dal documento n° CN201122783, in cui si descrive un avvolgicavo percorso da corrente elettrica, comprendente un contenitore resistente alla deflagrazione ed una coppia di contatti striscianti, capace di garantire un flusso di corrente senza incorrere nel pericolo di innescare un arco elettrico in corrispondenza delle parti in contatto strisciante. The state of the art is represented by document n ° CN201122783, which describes a cable reel carried by electric current, comprising an explosion-proof container and a pair of sliding contacts, capable of guaranteeing a flow of current without incurring danger. to ignite an electric arc in correspondence with the parts in sliding contact.
In vista dello stato della tecnica, scopo della presente invenzione à ̈ realizzare un particolare avvolgicavo per installazioni in ambiente antideflagrante, del tipo in cui l’avvolgimento del cavo avviene utilizzando energia potenziale elastica immagazzinata durante lo svolgimento del cavo stesso. In view of the state of the art, the object of the present invention is to produce a particular cable reel for installations in an explosion-proof environment, of the type in which the cable is wound using potential elastic energy stored during the unwinding of the cable itself.
In accordo alla presente invenzione, detto scopo viene raggiunto mediante un avvolgicavo per installazioni in ambiente antideflagrante, comprendente una custodia collegata ad un dispositivo esterno di avvolgimento ed un cavo conduttivo per la messa a terra, caratterizzato dal fatto che, l’avvolgimento e lo svolgimento di detto cavo sono regolati da una batteria di molle inserite nella custodia. In accordance with the present invention, said object is achieved by means of a cable reel for installations in an explosion-proof environment, comprising a case connected to an external winding device and a conductive cable for grounding, characterized in that the winding and unwinding of said cable are regulated by a battery of springs inserted in the case.
Si intende che le rivendicazioni costituiscono parte integrante della presente descrizione. It is understood that the claims form an integral part of the present description.
Le caratteristiche della presente invenzione, come rivendicata nella rivendicazione 1, risulteranno maggiormente evidenti dalla seguente descrizione di una sua forma di realizzazione pratica, illustrata a titolo di esempio non limitativo nei disegni allegati, in cui: The characteristics of the present invention, as claimed in claim 1, will become more evident from the following description of a practical embodiment thereof, illustrated by way of non-limiting example in the attached drawings, in which:
le figure 1, 2, mostrano rispettivamente una vista in assonometria di un avvolgicavo oggetto di invenzione; Figures 1, 2 respectively show an axonometric view of a cable reel object of the invention;
la figura 3 mostra una vista frontale dell’avvolgicavo oggetto di invenzione; figure 3 shows a front view of the cable reel object of the invention;
la figura 4 mostra una vista in sezione secondo la linea IV-IV di figura 3; Figure 4 shows a sectional view along the line IV-IV of Figure 3;
la figura 5 mostra una vista in sezione secondo la linea V-V di figura 3; figure 5 shows a section view along the line V-V of figure 3;
la figura 6 mostra un dettaglio VI ingrandito di figura 5; figure 6 shows an enlarged detail VI of figure 5;
la figura 7 mostra una vista in assonometria dei sistemi visualizzati tramite la sezione di figura 5; figure 7 shows an axonometric view of the systems displayed through the section of figure 5;
la figura 8 mostra un dettaglio VIII ingrandito di figura 7. figure 8 shows an enlarged detail VIII of figure 7.
Con riferimento alle figure 1, 2, 3, un avvolgicavo 1 per installazioni in ambiente antideflagrante comprende una custodia 2 collegata ad un dispositivo esterno di avvolgimento 3, un cavo conduttivo per la messa a terra (non raffigurato). With reference to figures 1, 2, 3, a cable reel 1 for installations in an explosion-proof environment comprises a housing 2 connected to an external winding device 3, a conductive cable for grounding (not shown).
La custodia 2 à ̈ una custodia antideflagrante formata da un involucro prismatico 21 avente una faccia aperta occupata da un coperchio 22 bloccato lungo un ampio bordo flangiato piano 23 mediante elementi di fissaggio 24. La custodia 2 à ̈ un pressofuso in materiale di lega di alluminio priva di rame, munita di piedini 25 con fori filettati per il fissaggio ad un dispositivo dell’ambiente antideflagrante. The housing 2 is an explosion-proof housing formed by a prismatic housing 21 having an open face occupied by a cover 22 blocked along a wide flat flanged edge 23 by means of fasteners 24. The housing 2 is a die-cast aluminum alloy material copper-free, equipped with feet 25 with threaded holes for fixing to an explosion-proof room device.
Con riferimento alle figure 5, 6, una parete laterale dell’involucro prismatico 21 à ̈ munita di un foro passante 26 rispetto al quale viene centrato con una certa interferenza un gruppo flangiato 4. With reference to figures 5, 6, a side wall of the prismatic casing 21 is provided with a through hole 26 with respect to which a flanged assembly 4 is centered with some interference.
Il gruppo flangiato 4 comprende una flangia cilindrica 41, sagomata per alloggiare un albero 51 libero di ruotare rispetto ad una coppia di cuscinetti volventi 52, 53, realizzata in ottone o bronzo. The flanged assembly 4 comprises a cylindrical flange 41, shaped to house a shaft 51 free to rotate with respect to a pair of rolling bearings 52, 53, made of brass or bronze.
Il dispositivo esterno di avvolgimento 3 à ̈ formato da un tamburo delimitato assialmente da spalle 31, 32 e da un mozzo 33 attorno al quale si avvolge il cavo conduttivo per la messa a terra previo collegamento ad un elemento di fissaggio 34 in prossimità del mozzo 33 (figure 4, 5, 6). The external winding device 3 is formed by a drum axially delimited by shoulders 31, 32 and by a hub 33 around which the conductive cable for grounding is wound after connection to a fastening element 34 near the hub 33 (figures 4, 5, 6).
Il mozzo 33 à ̈ calettato con precisione all’albero flangiato 51 con il quale à ̈ solidale durante la rotazione rispetto al gruppo flangiato 4. The hub 33 is keyed precisely to the flanged shaft 51 with which it is integral during rotation with respect to the flanged group 4.
Con riferimento alle figure 7, 8, la custodia 2 contiene un gruppo di contatti striscianti 6 formato da una serie di bracci 61, ciascuno avente un’estremità incernierata ad un perno 63 fissato ad un supporto 62 solidale al contenitore 21, mentre l’estremità opposta à ̈ collegata ad una spazzola 64. Per mezzo di una molla 65 ciascun braccio 61 preme la spazzola 64 su un rispettivo anello 52 solidale con l’albero flangiato 51. With reference to figures 7, 8, the case 2 contains a group of sliding contacts 6 formed by a series of arms 61, each having one end hinged to a pin 63 fixed to a support 62 integral with the container 21, while the The opposite end is connected to a brush 64. By means of a spring 65 each arm 61 presses the brush 64 onto a respective ring 52 integral with the flanged shaft 51.
Sia le spazzole 64 sia gli anelli 52 sono in metallo conduttivo. Cablaggi elettrici (non raffigurati) collegano i bracci 61 con un connettore a parete (non raffigurato) fissato mediante un foro 27 praticato sulla parete laterale della custodia 2 (figura 5). Both the brushes 64 and the rings 52 are made of conductive metal. Electric harnesses (not shown) connect the arms 61 with a wall connector (not shown) fixed by means of a hole 27 made on the side wall of the housing 2 (figure 5).
Durante la rotazione del cavo conduttivo per la messa a terra, un collegamento elettrico, tra il connettore fisso montato in prossimità del foro 27 della custodia 2 e l’estremità libera del cavo conduttivo per la messa a terra, à ̈ assicurato tramite i contatti striscianti tra gli anelli 52 e le spazzole 64. During the rotation of the conductive cable for grounding, an electrical connection, between the fixed connector mounted near hole 27 of the housing 2 and the free end of the conductive cable for grounding, is ensured through the contacts sliding between rings 52 and brushes 64.
Con riferimento alla figura 5, un albero 71 Ã ̈ sostenuto da una coppia di cuscinetti 72, 73, inseriti in una struttura di sostegno formata da due vani 74, 75, in cui alloggia una coppia di molle a spirale (non raffigurate). With reference to figure 5, a shaft 71 is supported by a pair of bearings 72, 73, inserted in a support structure formed by two compartments 74, 75, in which a pair of spiral springs (not shown) is housed.
L’albero 71 à ̈ solidale ad una ruota dentata 76 la quale à ̈ collegata ad una ruota dentata 53, calettata sull’albero 51, attraverso una trasmissione a catena a rulli cilindrici (non raffigurata). The shaft 71 is integral with a toothed wheel 76 which is connected to a toothed wheel 53, keyed on the shaft 51, by means of a chain transmission with cylindrical rollers (not shown).
L’albero 71 à ̈ altresì solidale all’estremità della coppia di molle a spirale alloggiate nei vani 74, 75. La rotazione in un senso dell’albero 71, trasmessa dal tamburo 31 mediante la trasmissione a catena, comporta un certo accumulo di energia potenziale elastica da parte delle molle a spirale inserite nei vani 74, 75, restituendola durante la fase di moto inverso del tamburo 31. The shaft 71 is also integral with the end of the pair of spiral springs housed in the compartments 74, 75. The rotation in one direction of the shaft 71, transmitted by the drum 31 through the chain transmission, involves a certain accumulation of elastic potential energy by the spiral springs inserted in the compartments 74, 75, returning it during the reverse motion phase of the drum 31.
Secondo una variante di esecuzione, la trasmissione a catena non viene utilizzata, la coppia di molle a spirale essendo direttamente collegata all’albero 51. According to a variant of execution, the chain transmission is not used, the pair of spiral springs being directly connected to the shaft 51.
Il cavo conduttivo per la messa a terra si avvolge sul tamburo 31 disponendosi in modo ordinato su più spire in senso radiale. The conductive grounding cable winds around the drum 31 arranging itself in an orderly manner on several coils in a radial direction.
Un’estremità del cavo conduttivo per la messa a terra à ̈ fissata in un punto 34 del mozzo 33 del tamburo 31. One end of the conductive grounding cable is attached to a point 34 of the hub 33 of the drum 31.
Secondo una forma preferita di realizzazione dell’avvolgicavo 1, il cavo à ̈ una treccia in rame stagnato per la messa a terra. According to a preferred embodiment of the cable reel 1, the cable is a tinned copper braid for grounding.
Il collettore ad anelli comprende anelli in bronzo e spazzole in metallo e grafite. The slip ring includes bronze rings and metal and graphite brushes.
L’azionamento comprende un motore costituito da una o più molle funzionanti in parallelo e munite di dispositivo antirottura in caso di controrotazione improvvisa del tamburo avvolgitore. The drive includes a motor consisting of one or more springs operating in parallel and equipped with an anti-breaking device in the event of sudden counter-rotation of the winding drum.
Il collettore ad anelli può essere composto da anelli sia per alimentazioni di potenza, sia per comandi ausiliari. The slip ring can be composed of rings both for power supplies and for auxiliary controls.
L’avvolgitore funziona sia con recupero orizzontale che verticale. The winder works with both horizontal and vertical recovery.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT000654A ITTO20130654A1 (en) | 2013-07-31 | 2013-07-31 | CABLE REEL FOR INSTALLATIONS IN AN EXPLOSIVE ENVIRONMENT |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT000654A ITTO20130654A1 (en) | 2013-07-31 | 2013-07-31 | CABLE REEL FOR INSTALLATIONS IN AN EXPLOSIVE ENVIRONMENT |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ITTO20130654A1 true ITTO20130654A1 (en) | 2013-10-30 |
Family
ID=49182442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT000654A ITTO20130654A1 (en) | 2013-07-31 | 2013-07-31 | CABLE REEL FOR INSTALLATIONS IN AN EXPLOSIVE ENVIRONMENT |
Country Status (1)
| Country | Link |
|---|---|
| IT (1) | ITTO20130654A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3040139A (en) * | 1958-06-16 | 1962-06-19 | Arthur I Appleton | Take-up reel |
| US3400230A (en) * | 1966-08-25 | 1968-09-03 | Aero Motive Mfg Company | Electric cable reel |
| US5261514A (en) * | 1992-05-04 | 1993-11-16 | Woodhead Industries, Inc. | Grounding cable reel for vehicle |
| US7078621B1 (en) * | 2001-01-25 | 2006-07-18 | Lightning Eliminators & Consultants, Inc. | Grounding system for floating roofs in flammable storage tanks |
| CN201122783Y (en) * | 2007-11-23 | 2008-09-24 | 三一重型装备有限公司 | Explosion-proof cable drum |
-
2013
- 2013-07-31 IT IT000654A patent/ITTO20130654A1/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3040139A (en) * | 1958-06-16 | 1962-06-19 | Arthur I Appleton | Take-up reel |
| US3400230A (en) * | 1966-08-25 | 1968-09-03 | Aero Motive Mfg Company | Electric cable reel |
| US5261514A (en) * | 1992-05-04 | 1993-11-16 | Woodhead Industries, Inc. | Grounding cable reel for vehicle |
| US7078621B1 (en) * | 2001-01-25 | 2006-07-18 | Lightning Eliminators & Consultants, Inc. | Grounding system for floating roofs in flammable storage tanks |
| CN201122783Y (en) * | 2007-11-23 | 2008-09-24 | 三一重型装备有限公司 | Explosion-proof cable drum |
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